Draft equalizer



G. JOHNSON DRAFT EQUALIZER May 7, 1929.

Original Filed June 25, 1926 Patented May 7, 1929.k

1,711,552i PATENT OFFICE.-

GUST JOHNSON, OF OBR-IN, NORTH DAKOTA. l

DRAFT Eennmann.

Applicationnied Jun@ 25, 192e, serial 'This invention'relates to draftequalizers and it is an object of the invention to provide a device of this kind especially designed for use in connection with an uneven number .of animals, preferably tive, and wherein the construction of the device is such as to reduce side draft.

It is also an object of the invention to previde a de rice of this kind which is. constructed and assembled in a manner whereby it is possible to use live animals abreast in connection with a plow.

The invention consists in the details of construction and in the combination Iand arrangement of the several parts of my improved draft eqnalizer'whereby certain important advantages are attained and vthe device rendered simpler, less expensive andl otherwise more -convenient and advantageous foriuse, as-will be hereinafter more fullyjset forth. A` o The `novel .features of myinvention will hereinafter be definitely claimed,

In order that my invention may be the better understood7 l will now proceedto describe the same'with referenceto the accompanying drawings, wherein Figure l is a plan view illustrating a draft equalizer constructed in accordance with an embodiment 'ofvmyinventiong Y i Figurev 2 is -an enlarged sectional `view taken substantially on the line 2-.-2 Vof Figure l, with ycertain of the parts in elevation;

Figure 3 is a view partly invsection land partly in elevation, the section being' taken on the line 33 of Figure l.

is herein embodied, M4 denotes .the 'main equalizing or draft member which,` as

herein disclosed, comprises an velongated plate l of requisite thicknessvand which is returned uponitself, as particularly illustrated in Figure 2,to providethe upper and lower members between which is vsnugly engaged an elongated beam 2. This beam 2 extends from the free ends of the plate l to a desired point inwardly ofthe connected extremities of the upper and lower niembers whereby is provided an elongated-open# ing orslot 3. The plate l and-the beam 2 are maintained in desired assembled Vrelation by the bolts et, 5 and 6. y i

The .opening or slot 3 is intersected by a bolt in relatively close'proximity'tothe connected extremities of the upper and lower members ofthe plate 1. Positioned kthe portions of the arms l()V .the bolt v1l.

y theretol by No. 18,571. Renewed October 1G, 1928.'

lbetween said bolt 5 and 'the bolt 7.

` yThe extremitiesjof the' bolt 5 above andk below. the member M have engaged therewith the elevis C of any preferred type.

The upper and lower faces of the beam 2 around the bolt 5 are provided with the substantially semi-circular recesses 9 which, in connection with the overlying portions-f of the members of the plate. l, provide pockets in which are received the inner end portions of the Vforwardly directed arms l0,

y within the pockets being pivotally orfreely engaged with the bolt 5. hereinbefore referred to.

The outer end portions of-thefarms l0 overlie the upper and lower faces4 of the supplemental draft or Veopualiz-ing member S and are pivotally connected thereto by The bolt ll is -positioned to one side of. the longitudinal center of the supplemental member Sa distance necessary toassure the requisite equalizing of the draft. j

At substantially its .longitudinal center the member .S hask pivotally i connected the bolt 12^the forwardy end' .portions of Y `which overlie the `upper and lower faces of the member S'. These straps lllhave their rear end portions overlying the upperL and @up lower faces of an lauxiliary equaliring.mem-

ber A vand 'pivotaily connected thereto 'by the rigid pulling strapsiVV free extremities of the'V side plates of this member A are 7, to `the innerl extremities ofthe rigid draft straps 18. These draft straps lSare of length lto terminate a desired distancev in advancejof the member S and said draft straps have'operatively engaged with their' outerV extremities a singletree 19. In order pivotally connected, as vat that the straps 18 will have requisite free swinging movement with respect Vto theV member S, itindV it of advantage -tofapply to the upper and lower faces of the member '7 S the elongatedk brackets 2,0 withwhich the g straps 18 have Contact and are thus maintained free et the bolts 1l and l2 and the arms l0 and straps le.

The distance between the pivot bolts l5 and l is .one-halt of the distance between the bolt 4 and the pivotal connections l?, thereby permitting the auxiliary member A to equalize the draft trom the singletree 19 and the pull on the straps lill.

The lett extremity ot the members, or that end portion similar to the end portion et the member M to which the member A is engaged, has disposed therethrough a bolt 2l which provides a pivotal mounting for the forwardly directed straps 22 each et which in turn being` pivotally connected, as at 23, with the central portion ot a doubletree 241. The bolt 2l also provides a mmmting` for the rearwardly disposed elongated clevis 25 to which is attached an extremity ot a chain 26.

This chain 2G extends around the pulley 8 liereinbeliore referred to and also around the pulley' 27 carried by the central portion ot the doubletree 28 and positioned rearwardly thereof.

rlhe adjacent or right end portion ot the member te' has bolted thereto, as at 29, the side arms ot a substantially icl-shaped member B and the extremity et the member S between the side arms ot such bracket is provided with a slot or hert 3() intersected by the bolt il with which is engaged the adjacent extremity of the chain This bolt 3l is selectively disposed through a link et the chain 26 whereby the proper application et such chain is assured.

` ln view of the foregoing, it is believed it will be readilyunderstood that I have provided a draft equalizer for use with live horses working abreast whereby side dra'tt reduced and more particularly when thev equalizer is being,` used in connection with a plow.

From .thev foregoing,l description it is thought to be obvious that a draft equalizer constructed in accordance with my inven tion is particularly well adapted tor use by reason ot the convenience andlacility with Y"which it may be assembled and operated,

and it will also be obvious that my invention is susceptible et some change and modi- .iication without departing trom the prineiples and spirit thereoli and tor this reason l do not wish to be understood as limiting myself to the precise arrangement and tormation ot the several parts herein shown in carrying out my invention inl practice ei;- eept as hereinafter claimed.

It is to be understood that the equaliser as herein disclosed is an improvement on the type ot equalizer shown in my pending application Serial No. 114,569 tiled J une 8, 1926, but in the present invention the structure is 'for tive draft animals instead ot tour as set forth in my otherv application.

l claim:-

l. t draft equalizer comprising@` a main evene-r member, a supplemental evener member in advance thereof, arms pivotally connected with tne intermediate portion of the main member and to thesupplemental menr ber at a point to one side et its longitudinal center, an auxiliary member pivotally connected with an end portion ot' the main member, pulling straps pivotally connected with the central portion ot' the supplemental member and 'all pivotally connected to one end ot the auxiliary member, draft straps pivotally connected with the oppsite end portion ot the auxiliary member' and eX- tending forwardly ot the supplemental member,.the space between the pivotal mounting` l ot the auxiliary member and the pivotal connection betvv'een the pulling` straps and said auxiliary member being substantially one halt` ot the distance between the pivotal mountinget the auxiliar(v member and 'the pivotal connection ot the draft straps with the auxiliary member, a doubletree operatively engaged with the lett side et the supplemental' member, a pulleyrcarried by the right side ot' the main member, a flexible member operatively Vconnected with the lett side ot the supplemental member passing;n around the pulley ot the main member and secured to the right end ot the supplemental member, and a second doubletree havinga pulley around which the ilexible member is directed.

2. A. draft equalizer as defined in claim l wherein the distance between the `pivotal connection ot the arms with the main member and the mounting for the auxiliary member is substantially two-thirds ot the distaucobetween 'the pivotal connection eli said arms with the main member and the mounting tor the pulley oit' the mainv member.

A draitt equalizer as delined in claim l wherein the draft straps overlie the upper and lower Yfaces of the supplemental member, and guard b aclets carried bysaid up per and lower itaces et the supplemental member with which lthe draft straps .are adapted to Contact.

ln testimony'whereot l hereunto atliX my signature.

euer Jonsson. 

